@misc{indiciaeee06e2a502be,
  title = {The Bishop ash bed and some older compositionally similar ash beds in California, Nevada, and Utah},
  author = {G. A. Izett},
  year = {1982},
  doi = {10.3133/ofr82582},
  url = {https://pubs.usgs.gov/publication/ofr82582},
  note = {Source identifier: ofr82582}
}